Essays about: "ultra high"

Showing result 11 - 15 of 264 essays containing the words ultra high.

  1. 11. Texture Analysis and Ultra high-frequency ultrasound in use for diagnosing Hirschsprung's disease

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Sophia Klarén; Jonathan Jedhammar; [2023]
    Keywords : Hirschsprung s disease; Aganglionosis; UHF ultrasound; Texture analysis; Nakagami; Skewness; Kurtosis; Technology and Engineering;

    Abstract : An investigation into the use of statistical texture analysis in combination with ultra high-frequency ultrasound for diagnosing Hirschsprung’s disease (HD); An illness that manifests itself through the absence of ganglia cells in lower parts of the intestine. Current diagnostic techniques carry a higher risk of long-term consequences in newborns and children which enables a new avenue of research into new methods. READ MORE

  3. 12. Generation of attosecond X-ray pulses in free-electron lasers using electron energy modulation and undulator tapering

    University essay from Uppsala universitet/FREIA

    Author : Karl-Fredrik Boholm Kylesten; [2023]
    Keywords : attosecond; free-electron laser; XFEL; self-amplified spontaneous emission; SASE; tapering; energy modulation;

    Abstract : Free-electron lasers (FELs) are among the world's most intense artificial artificial sources of coherent light and are tunable to various wavelengths, including the X-ray spectrum. X-ray FELs (XFELs) are extremely useful for diffraction experiments to study molecules, materials, and quantum systems. READ MORE

  4. 13. Review and Design of DC Electrical Field Measurement Systems and Related Developments : For Measurements Around HVDC Cable Terminations

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Emil Bergvall; [2023]
    Keywords : DC Field Probe; Measurement Systems; Electric Fields; Cable Termination; Ion Drift; Conductivity; HVDC; Field Mill; Field Simulations; Positioning System; MEMS; Electro-Optics; DC Fält Prob; Mätsystem; Elektriska Fält; Kabelavslut; Jondrift; Ledningsförmåga; HVDC; Fältkvarn; Fält Simulationer; Positioneringsystem; MEMS; Elektro-Optik;

    Abstract : With power generation and consumption placed further away from each other, with for example increased offshore power production, the need for HVDC transmission systems increases. As voltage levels in the HVDC transmission system are raised, the losses can be decreased, enabling efficient power transfer over longer distances. READ MORE

  5. 14. Testing Coagulation Potential of Extracellular Vesicles Derived from Aortic Stenosis Patients on Human Cardiac Spheroids

    University essay from Uppsala universitet/Institutionen för medicinsk biokemi och mikrobiologi

    Author : Muhammad Nafiz Ikhwan Bin Nor Fuad; [2023]
    Keywords : Extracellular vesicles; human aortic endothelial cells; tissue factor; TNFα; coagulation pathway; cardiac spheroids;

    Abstract : Cardiovascular diseases have always been the leading cause of global morbidity and mortality. Aortic stenosis, which is a kind of cardiovascular disease has a high prevalence in elderlies that are 75 years and older. Currently, the only available treatment would be valve replacement surgery. READ MORE

  6. 15. Resistance Element Welding of Ultra High Strength Steel to Aluminium

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Malte Eriksson; [2023]
    Keywords : ;

    Abstract : The automotive industry strives towards decreased vehicle weight in order to decrease green house gas emissions. To create lighter vehicles, new lighter materials need to be implemented. One issue with new materials is that the traditional joining methods in many cases meet their limitations. READ MORE